Observation of the day: the area around Yeshiva University's Wilf Campus up here in northern Manhattan is basically a ghetto. Those people who know Washington Heights won't be surprised. Those people familiar with the area immediately surrounding Columbia University, however, might be: while Columbia is certainly in the heart of Harlem, there's this halo around it of shops and restaurants that would be completely out of place but for the university. Yeshiva has no such halo, which I found surprising.

Perhaps, though, it's actually Columbia that's the exception. Is there a halo around U.S.C.? Around U. Chicago?

That's just to name two schools that are notoriously in the midst of, essentially, ghettos. I'm sure there are more, but I'd be curious to find out whether they have the "Columbia halo."